The value series UPS offers home & small office users' clean & stable battery backup while the featured RJ11/RJ45 port ensures phone, fax, & modem lines are protected from surges. With Automatic Voltage Regulation (AVR) stabilizes the AC signal & maintains a safe voltage, this allows the UPS to maintain safe power levels for the connected equipment without resorting to battery power. The multifunction LCD readout provides immediate access to precise information of critical power/battery condition.